Features:1. High-performance (CPU) ARM Cortex-A53 quad-core with a master frequency up to 1.1ghz, RAM 2G DDR3, 16G storage, System Version: Android 7.1; 2. Use international standard OPS slot, integrated plug-in design, easy to upgrade and maintain, no connection line of computer module can be seen outside;3. Front-dismounted high-precision IR touch frame, with touch accuracy up to ±1mm and touch height of 3.0mm, supports 20-point touch control and has high sensitivity;4. Simple and fashionable three-sided appearance design, brushed silver for up and down frame, and matte black for left and right;5. High performance writing software, supporting single and multi-point writing, supporting insert pictures, add pages, gesture board to erase, enlarge, shrink and roam, scan code sharing, and annotating in any interface of any channel; 6. 2.4g W-FI wireless connection (optional) and wired connection of network port use network resources;7. Intelligent sleep, touch-screen wake-up, one-click energy saving, environmental protection, power saving, and extended service life;8. Support automatic recognition and jump of external input signal source, easy and convenient screen switching;9. 2x10W speakers in front to prevent the deterioration of the sound effect due to the embedded environment;10. Wireless same screen, support multi-channel same screen, realize mirror reverse control, remote snapshot, video, music, document sharing, picture screenshot, wireless remote control, confidentiality point casting and other functions;11. Support wireless screen click share (up to four mobile phones or computer terminals at the same time)12. Vandal-proof tempered glass, Mohs level 7 hardness, guaranteed safety. 

Features:1.High-performance (CPU) ARM Cortex-A53 quad-core with a master frequency up to 1.5ghz, RAM 1G DDR4, 8G storage, System Version: Android 6.0;2.Reserved OPS interface, extensible dual system;3. Front-dismounted high-precision IR touch frame, with touch accuracy up to ±1mm and touch height of 3.0mm, supports 20-point touch control and has high sensitivity;4. Simple and fashionable three-sided appearance design, brushed silver for up and down frame, and matte black for left and right;5. High performance writing software, supporting single and multi-point writing, supporting insert pictures, add pages, gesture board to erase, enlarge, shrink and roam, scan code sharing, and annotating in any interface of any channel; 6. 2.4g W-FI wireless connection (optional) and wired connection of network port use network resources;7. Intelligent sleep, touch-screen wake-up, one-click energy saving, environmental protection, power saving, and extended service life;8. Vandal-proof tempered glass, Mohs level 7 hardness, guaranteed safety. 9. One-key restore function in the case of system crash, to make sure the normal teaching will not be affected;